ENCODING AND DECODING APPARATUS FOR LINEAR PREDICTIVE CODER RESIDUAL SIGNAL OF MODIFIED DISCRETE COSINE TRANSFORM BASED UNIFIED SPEECH AND AUDIO CODING

Disclosed is a device for encoding/decoding an LPC residual signal of an MDCT-based integrated speech/audio encoder. The device for encoding the LPC residual signal selects an encoding method of a signal, which is LPC filtered, by analyzing the characteristics of an input signal and encodes the LPC...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KIM MINJE, PARK YOUNG CHEOL, HONG JIN WOO, BEACK SEUNG KWON, LEE TAE JIN, AHN CHIETEUK, JANG DAE YOUNG, KANG KYEONGOK, PARK HOCHONG, SEO JEONGIL
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ACOUSTICS MUSICAL INSTRUMENTS PHYSICS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Disclosed is a device for encoding/decoding an LPC residual signal of an MDCT-based integrated speech/audio encoder. The device for encoding the LPC residual signal selects an encoding method of a signal, which is LPC filtered, by analyzing the characteristics of an input signal and encodes the LPC residual signal based on one of real filterbank, complex filterbank, and algebraic code excited linear prediction (ACELP). MDCT 기반 음성/오디오 통합 부호화기의 LPC 잔차신호 부호화/복호화 장치가 개시된다. LPC 잔차신호 부호화 장치는, 입력 신호의 특성을 분석하여 LPC 필터링된 신호의 부호화 방법을 선택하고, 실수 필터뱅크(real filterbank), 복소 필터뱅크(complex filterbank), 및 ACELP(Algebraic code excited linear prediction) 중 하나에 기초하여 상기 LPC 잔차신호를 부호화한다.